Static Electricity Flashcards
1
Q
What is a build up of static caused by?
A
friction
2
Q
Cloth rubbing polythene rod?
A
-electrons move from cloth to rod
3
Q
Explain how rubbing an acetate rod with a cloth causes the rod and cloth to become charged
A
- friction
- transfers electrons
- cloth GAINS electrons becomes NEGATIVELY charged
- rod loses electrons become POSITIVELY charged
4
Q
What creates an electric field?
A
electric charges
5
Q
How are sparks caused?
A
- When there is a high pd between charged object and the earth
- causes strong electric field between charged object and earthed object
- electric field cause electrons In the air particles to be removed
- current flows through air creating spark
